| (19) |
 |
|
(11) |
EP 0 838 501 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
17.06.1998 Bulletin 1998/25 |
| (43) |
Date of publication A2: |
|
29.04.1998 Bulletin 1998/18 |
| (22) |
Date of filing: 16.10.1997 |
|
| (51) |
International Patent Classification (IPC)6: C08L 67/02, C08L 23/08
// (C08L67/02, 23:08, 23:08),(C08L23/08, 23:08) |
|
| (84) |
Designated Contracting States: |
|
AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
| (30) |
Priority: |
23.10.1996 US 740006
|
| (71) |
Applicant: HOECHST CELANESE CORPORATION |
|
Somerville, N.J. 08876 (US) |
|
| (72) |
Inventors: |
|
- Nelsen, Suzanne
Mountain Lake, NJ (US)
- Golder, Michael
Allendale, NJ (US)
- DeStio, Paul
Bound Brook, NJ (US)
- Lu, Mengshi
North Plainfield, NJ 07060-3558 (US)
|
| (74) |
Representative: von Kreisler, Alek, Dipl.-Chem. et al |
|
Patentanwälte,
von Kreisler-Selting-Werner,
Bahnhofsvorplatz 1 (Deichmannhaus)
50667 Köln
50667 Köln (DE) |
|
| |
|
| (54) |
Method and compositions for toughening polyester resins |
(57) An acrylic modifier composition for improving impact resistance of polyester compositions
is provided which comprises (a) between about 10% to about 90% by weight of a first
component selected from the group consisting of an ethylene alkyl acrylate co-polymer
and ethylene alkyl methacrylate copolymer, wherein the alkyl is C1 to C10; and (b)
between about 10% to about 90% by weight of a second component selected from the terpolymer
group consisting of ethylene/alkylacrylate/ glycidyl methacrylate; ethylene/alkyl
acrylate/glycidyl acrylate; ethylene/alkyl methacrylate/glycidyl acrylate; and ethylene/alkyl
methacrylate/glycidyl methacrylate, wherein the alkyl is C1 to C10. Polyester compositions
toughened by addition of the modifier composition are disclosed, as are articles molded
from these compositions and processes for forming these polyester compositions.